The hex color #3bb7a2 is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#C4485D. The grayscale version is
#878787. A 20% lighter version of the original color is
#6EEAD5, and Hex
#08846F is the 20% darker color. If the color is saturated by 10%, you get
#33BCA5. If the color is desaturated by 10%, the color
#43B29F is obtained.